Some one has service manual or circuit for CLoud cv1000 amplifier ?
Thanks in advance
Thanks in advance
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Re: Cloud cv1000
any help pls? -
Re: Cloud cv1000
Were you in any way successful?
I have a cloud cv1000 here that shows no sign of life when powered on.
There seem to be at least two revisions of the cv1000, mine looks like this:
The ?caps? seem pretty wrinkled, but I have no idea about their ratings, so getting a replacement seems futile.Attached FilesComment
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Re: Cloud cv1000
Added pic of ?caps?.Attached FilesComment
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Re: Cloud cv1000
The power resistor on the soft start board seems to have opened, I'll swap it with a new one and replace the relais next to it.Comment
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Re: Cloud cv1000
Their rating will be printed on the sides.
That said if there really is no printing it can be estimated from the size of the capacitor and referencing the size chart of any capacitor datasheet...
But you will need to know voltage, that can of course be measured...
The wrinkles could be completely normal, feel the top and if it is flat they are probably ok."The one who says it cannot be done should never interrupt the one who is doing it."Comment
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Re: Cloud cv1000
The tops feel flat, I suspect/hope it's *just* the soft starter. I'm currently ordering the parts (22ohm 10w power resistor + 48v 16a relay) and hope that this fixes it
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Re: Cloud cv1000
Post a picture of the soft start, I'm curious how they implemented it.
Here is one I designed if it might be of any help:
https://www.eevblog.com/forum/beginn...72/#msg3978872"The one who says it cannot be done should never interrupt the one who is doing it."Comment
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Re: Cloud cv1000
Sure!
But I've already assembled the amp and put it back in the rack, so I'll make them when I've got the parts and have to remove the starter for soldering anyway (since I've measured the resistor in situ I haven't done so yet).Comment
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Re: Cloud cv1000
I had to look whether I need a 8 or 6 pin relay, so there are pictures of front+back+a merged version for easier reversing hth
Attached FilesComment
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Re: Cloud CV1000
Thanks, that's humorously close to the design in my first post on eevblog.
Probably with all the caveats I mention in my post at paragraph three there.
So if you want to make it better you can loan some ideas from that thread.
But if the datecode on your capacitors (week 45, 1986) is anything to go by it's good enough already!
"The one who says it cannot be done should never interrupt the one who is doing it."Comment
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Re: Cloud CV1000
I've replaced the power-resistor and the relais. But as soon as I connect the amp to mains and turn it on the power-resistor opens again :'(
Any ideas how to further debug this?Comment
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Re: Cloud CV1000
Check the thread I linked on eevblog, it might have some details for use.
I would use an incandescent light bulb in series with the unit.
The problem on mine was that at a higher voltage the main filter cap was shorted.
If you blow the power resistor it could be something similar..."The one who says it cannot be done should never interrupt the one who is doing it."Comment
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Many thanks.
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